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Frequently Asked Questions View all FAQs
How do you order the correct replacement parts?

Before ordering replacement parts, make sure you have the fan model and serial number.

Where can I find instructions to wire a motor on my fan?

The nameplate of the motor includes a wiring diagram. Wiring diagrams can also be found beneath the motor image in our Buy Parts section. Simply click the wiring diagram icon to view it.

Can I install a thermostat?

Yes, but only if the thermostat has a simple on/off operation. Please note: if the thermostat varies the amount of voltage delivered, it will damage the motor and void the warranty.

Can I install my whole house fan vertically?

Comfort Cooler (CC) series whole-house fans may be mounted vertically, however, the AS and CSS shutters will not function properly in the vertical position. We do not carry a ceiling shutter for vertical installation. Vertical installation instructions.

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Comfort Aide

SINCE 1948.

Comfort Aide

Sales Sheet
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24” CA2421-S
30” CA3021-S

Triangle’s Comfort Aide direct drive whole house fans are an efficient, economical way to cool your home. Our Comfort Aide Fans will cool your home to the outside temperature 5 to 10 times faster than central air conditioning at less than 1/10th the cost!


  • Two-speed direct drive motor
  • Two-speed pull chain switch included
  • Three-wing propeller
  • Rubber mounts for quieter operation
  • Heavy gauge steel construction
  • Easy installation, UL listed
  • CSS no-cut joist shutter included
  • Optional two-speed wall switch and 12-hour timer available (each sold separately)

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